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Wiper arm of a wiper deviceRelated Patent Categories: Brushing, Scrubbing, And General Cleaning, Attachments, Optical-member-attachable Cleaner (e.g., Windshield Wiper), Specific Coupling Or Mounting For A Driving Means Or Between A Cleaning Element And Means Linking It To The Driving Means, Arm-to-cleaning Element ConnectionWiper arm of a wiper device description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060137126, Wiper arm of a wiper device. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] The invention relates to a wiper arm of a wiper device comprising a coupling section for connecting a flat wiper blade, wherein the wiper arm is designed to be U-shaped in cross section at least in part, with a back and two side walls. [0002] Such a wiper arm is known from WO 00/73113 A1. The coupling section of such a wiper arm is very complicated to manufacture. Besides the wiper arm, the coupling section Is also designed to be U-shaped in cross section in the region in which a hinge pin is provided, said hinge pin running transversely to the longitudinal axis of the wiper arm. As a result, the coupling section is very complicated to produce in terms of manufacturing technology. [0003] The coupling section of the wiper arm serves for connection to a flat wiper blade which comprises a wiper strip facing the windscreen to be wiped, at least one strip-like elongate support element, and a connecting section for connection to the coupling section. Such flat wiper blades, which do not have a cascade-type clip design, are becoming more widespread. They usually have a very flat and narrow design, and this entails considerable advantages. [0004] It is an object of the present invention to provide a wiper arm comprising a coupling section to which flat wiper blades, as described in particular in WO 00/73113 A1, can be connected. The intention is for it to be possible for the coupling section of the wiper arm in this case to be manufactured in a simple manner in terms of manufacturing technology. [0005] According to the invention, this object is achieved by a wiper arm of the type mentioned above in that the coupling section comprises a stand-alone wall section of one side wall which protrudes beyond the back and the other side wall in the longitudinal direction, and a hinge pin attached to this wall section for coupling to a connecting section of the wiper blade. It is advantageous here if the stand-alone wall section runs in the rectilinear extension of the side wall of which it forms part. The wall section is then consequently in the plane of the associated side wall. [0006] This has the advantage that, compared to the closest prior art, the region of the coupling section on which the hinge pin is arranged is designed in a stand-alone manner with only one wall. As a result, manufacture is considerably simplified. Moreover, it is advantageous that the wiper arm, or the coupling section, is of narrower design than the coupling section of the closest prior art. As a result, any impairment of vision of the vehicle driver caused by the width of the wiper arm in the region of the coupling section can be minimized. [0007] One advantageous embodiment of the invention is obtained when the back is designed to be wider in the transverse direction than the length of the hinge pin in the transverse direction. As a result, the central longitudinal axis of the wiper arm advantageously lies substantially above the central longitudinal axis of the wiper blade. Consequently, a wiper device can be produced which is of very narrow design when seen in plan view of the windscreen to be wiped and thus impairs the vehicle driver's vision only to a small extent. [0008] It is advantageous if the back at least substantially covers a wiper blade arranged on the wiper arm. As a result, the part of the wiper blade which lies under the back of the wiper arm is protected. [0009] A wiper device of very flat design is obtained if the wiper blade is arranged at least in part between the side walls of the wiper arm. Moreover, the wiper blade is protected as a result. [0010] In another embodiment of the invention, it may be provided that the back is designed to be narrower in the transverse direction than the length of the hinge pin in the transverse direction. As a result, a wiper device can be produced which is of very flat design. [0011] According to the invention, it may be provided that the coupling section comprises a projection which adjoins the back, is L-shaped in cross section and has a web extending transversely to the longitudinal direction and a stop formed parallel to the wall section. As a result, a connection to a wiper blade known from WO 00/73113 A1 is possible, said connection being simple to produce in terms of manufacturing technology. The web may run in the plane of the back. [0012] According to the invention, it may be provided that the wiper blade in the assembled state is arranged laterally next to the wiper arm. Such a wiper blade has the advantage that it is of flat design. The wiper arm is advantageously designed in such a way that the hinge pin is riveted to the wall section, and this can be achieved in a simple manner in terms of manufacturing technology. [0013] The abovementioned object is also achieved by a wiper device which comprises a wiper arm according to the invention and a flat wiper blade which can be connected to the coupling section of the wiper arm. [0014] Further advantages and advantageous refinements of the invention can be found in the following description in which the invention is described and explained in more detail with reference to examples of embodiments shown in the drawing. In the drawings: [0015] FIG. 1 shows a partial section of a plan view of a first wiper arm according to the invention; [0016] FIG. 2 shows a section along line II; [0017] FIG. 3 shows a section along line III; [0018] FIG. 4 shows the plan view of a second wiper arm according to the invention; and [0019] FIG. 5 shows a detailed diagram of the hinge pin of the wiper arm shown in FIGS. 1 and 4. [0020] FIG. 1 shows a wiper arm 10 according to the invention, said wiper arm comprising a coupling section 12 for connection to a flat wiper blade 14 which is shown in part. The flat wiper blade 14 has a wiper strip 16, which faces the windscreen and is shown in FIGS. 2 and 3, two strip-like elongate support elements 18 and a connecting unit 20 connected to the support elements 18. A spoiler-like projection 21 is provided on the side facing away from the wiper strip 16. [0021] As can be seen from FIG. 2, the wiper arm 10 is designed to be U-shaped in cross section and has a back 22 and two side walls 24 and 26. The back 22 nevertheless does not run at right angles to the side walls 24 and 26, but rather is slightly inclined in the direction 27 to the side from which the wind flows against the wiper arm 10. [0022] The coupling section 12 comprises a stand-alone wall section 28, which protrudes beyond the back 22 and the side wall 24 in the longitudinal direction, and a hinge pin 30 which extends on the wall section 28 in the transverse direction. The hinge pin 30 engages in a seat 32 provided on the connecting unit 20, said seat being in the form of a blind hole. In the assembled state, the wiper blade 14 is arranged to pivot at least to a limited extent about the hinge pin 30. [0023] As can be seen from FIG. 5, the hinge pin 30 is riveted to the wall section 28. To this end, the wall section 28 has a hole 28 and a bore 34. Continue reading about Wiper arm of a wiper device... Full patent description for Wiper arm of a wiper device Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Wiper arm of a wiper device patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Wiper arm of a wiper device or other areas of interest. ### Previous Patent Application: Weighted trowel with elongated handle Next Patent Application: Cleaning system utilizing purified water Industry Class: Brushing, scrubbing, and general cleaning ### FreshPatents.com Support Thank you for viewing the Wiper arm of a wiper device patent info. IP-related news and info Results in 0.20145 seconds Other interesting Feshpatents.com categories: Computers: Graphics , I/O , Processors , Dyn. Storage , Static Storage , Printers 174 |
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